Showing 1–9 of 9 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Daniel George Purkis | Petrowell Limited | 6 |
| 2 | Andrew John Elrick | Weatherford Technology Holdings | 3 |
| 3 | Darren James | — | 1 |
| 3 | Santiago Galvez Porta | Weatherford Technology Holdings | 1 |
| 3 | Kenneth Delaney | — | 1 |
| 3 | Brian Fraser Findlay | — | 1 |
| 3 | George Gibson Chalmers | Abb Vetco Gray | 1 |
| 3 | Greg Cowie | — | 1 |
| 3 | Doug Cowie | — | 1 |